原题
The Power of Placebos
The placebo effect challenges conventional ideas about medical treatment efficacy. What is a placebo? A patient's condition sometimes improves if they believe that they are receiving an effective treatment, even if they are in fact receiving a sugar pill. In this example, the sugar pill, which has no active ingredient, is a placebo. Surprisingly, this effect can sometimes rival real medications in clinical trials.
Recent studies suggest that the placebo effect might be rooted in the brain's complex chemistry. When a patient anticipates positive effects, their brain can release chemicals like endorphins, which may cause genuine physiological changes. In one study, patients receiving placebo "painkillers" reported pain relief comparable to the one produced by actual painkillers, highlighting the brain's powerful role. Some researchers propose using the placebo effect deliberately to enhance therapy outcomes, arguing that the mind-body connection should be tapped into more.
However, ethical considerations arise: deceiving patients could undermine trust in healthcare. For example, even when a placebo leads to measurable improvement, knowingly administering it without full disclosure may violate principles of informed consent, raising questions about autonomy and transparency in patient care. This delicate balance between harnessing the placebo effect and maintaining ethical standards continues to be a topic of debate.
The word "deliberately" in the passage is closest in meaning to
Aon purpose
Bwith caution
Cefficiently
Dregularly
正确答案：A
解题思路
老师暂未填写解题思路。